Plant ID again , please!

Thanks to DG, I have identified many plants in my garden...Giving their scientific names when asked by friends makes one feel "like an expert" LOL!
So, to continue dazzling my non-gardenng friends by using scientific names, I hope it's OK to ask again for help to ID a couple more plants. :)

Here's the first one...the blue flowering plants around the plumeria tree..Unfortunately, I also don't know their local names !

Here's the second...the yellow and orange flowering plants around another plumeria tree. I've seen these plants often in hanging pots.
On the ground, they easily spread and can be quite a refreshing sight when in bloom...which is morning till 10 a.m. After that, the flowers simply close up. They are very easy to propagate, just cut the top and insert into the soil.

What's their scientific name?

...and here's the third...those plants with pointed green and reddish -purple leaves around a newly planted makopa tree.
They were singularly planted way back and now they have multiplied.

Thanks so much again for your help!

Aloha,

Well I am going to take a crack at it, although I am not sure of the correct botanical names!
#1 - some type of ruellia
#2 - some type of pursane
#3 - Moses in a basket - Tradescantia spathacea.

The ruellia became rather a problem for me because it spread all throughout the roots of a palm and it still apears now and then. Love pursane - as you say it's so easy to root although I have to use a glass of water as my garden is a bit too dry for it to be sucessful by just putting the cuttings into the soil. Moses in a basket comes up all over the place here - I haven't figured out how the seed spread so far from the mother plant, but it sure is easy to care for.

#2 looks like Portulaca lutea.

Thanks , Bravehearstmom and Metro!

Indeed it does and nothing kills it. I've tried Round up, digging them up, they were even flooded with saltwater during a hurricane and they came right back. I just pulled up a bunch of them yesterday. They have gotten under the roots of one of my Foxtail palms and I just cannot get rid of them. They also pop up in various places all over the yard. After Hurricane Georges and Wilma they were about the only thing blooming for a long time down here.